Roblox Forum

Quick Summary

• As of 2026-03-06, a Roblox platform creator reported they still cannot upload or delete experience thumbnails.
• The same report says the problem began after Roblox removed YouTube videos from experience pages (date not stated in the thread).
• The creator also cannot remove the old YouTube trailer from their experience page.

What's New

1. State on 2026-03-06: Thumbnail controls appear stuck for at least one creator experience.
2. Upload blocked: New thumbnail images cannot be added.
3. Delete blocked: Existing thumbnails cannot be removed.
4. Trailer cleanup blocked: A YouTube trailer cannot be removed from the page.
5. Duration shared by reporter: "A couple of months" before 2026-03-06 (exact start date not provided in the post).

Before vs. After
[table]
[tr][td]Feature[/td][td]Before (normal behavior)[/td][td]After (reported on 2026-03-06)[/td][/tr]
[tr][td]Upload thumbnail[/td][td]Creator adds new image to experience page[/td][td]Upload fails / cannot add[/td][/tr]
[tr][td]Delete thumbnail[/td][td]Creator removes old image anytime[/td][td]Delete not working[/td][/tr]
[tr][td]YouTube trailer removal[/td][td]Creator can clean up page media[/td][td]Cannot remove existing trailer[/td][/tr]
[/table]
Developer Context
The Roblox Developer Forum report links this issue to changes after YouTube video support was removed from experience pages. That suggests a media-management tool flow may have changed, and thumbnail/trailer controls might now be tied to a broken path for some experiences.
If you are a creator, this feels less like "bad image file" and more like a backend or UI state bug, because both upload and delete actions fail together.
Why You Should Care

• Your thumbnail is your first impression. If it is outdated, fewer players may click.
• Event updates become harder to promote when you cannot swap seasonal art.
• Branding gets messy if old trailer media is stuck on your experience page.
• For small studios and solo devs, this can directly hurt discovery and retention.

FAQ

• Q: Is this only one person's issue?
  A: Publicly, this source shows one thread with one participant as of 2026-03-06. It may still affect others, but this source confirms at least one case.
• Q: Did this start after YouTube trailer changes?
  A: The reporter says yes. They noticed it after YouTube videos were removed from experience pages (exact change date is not given in the thread).
• Q: Can I fix it by re-uploading a different image size?
  A: Maybe worth testing, but this report looks like a control-level issue, not just an image-format issue, since delete is also broken.
• Q: What should I do right now if my page is stuck?
  A: Document exact steps, include screenshots, and post a reproducible bug report on Roblox Developer Forum with date stamps like 2026-03-06. That helps engineers verify faster.
• Q: Does this affect players too, or only creators?
  A: Mainly creators directly, but players are affected indirectly because stale thumbnails can make active games look abandoned.

Sources

• Roblox Developer Forum thread: "Cannot delete or upload new thumbnails on my Roblox experience"